Interlocking Subfloor Panel with Moisture Barrier Base
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Solution Overview
Problem
Existing subfloor panel systems fail to create a continuous sealed moisture barrier, allowing moisture to seep through gaps between panels and potentially causing rot and damage to flooring materials.
Innovation Solution
The subfloor panels feature a base with releasable mating elements, such as ridges and channels, that allow for snap-fit connections without relying on the strength of the surface panels, and include projections for drainage and support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If surface panels are used to form joints through offset assembly, then the joint structure is simplified, but gaps form between the lower members allowing moisture infiltration
Solution Approach 1:
The panel system is divided into separate functional components: an upper surface panel and a lower base panel with integrated moisture barrier and drainage features. This segmentation allows each component to perform its specific function independently, with the base panel forming a continuous sealed joint while the surface panel provides the structural surface.
Solution Approach 2:
A separate base panel with integrated moisture barrier and drainage projections is introduced as an intermediary between the surface panel and the concrete substrate. This intermediary component fills the gap between panels and provides the moisture barrier function that was previously compromised in offset joint designs.
2Ease of operation
If panels are tapped laterally together to form joints, then installation is quick and simple, but the surface panels must have sufficient strength to withstand the tapping force
Solution Approach 1:
The panel is segmented into an upper surface panel and a lower base panel, allowing the surface panel to be lighter and easier to handle while the base panel provides the structural strength and moisture barrier. This segmentation eliminates the need for high-strength surface panels while maintaining ease of installation.
Solution Approach 2:
The base panel acts as a structural intermediary that bears the load and provides stability during installation. The surface panel can be installed easily without requiring excessive strength because the base panel supports the structural requirements.
3Shape
If offset assembly is used to create shiplap joints, then the joint appearance is continuous, but moisture can still seep through gaps at the joint location
Solution Approach 1:
The panel system is segmented into surface and base components, with the base panel forming a separate continuous moisture barrier layer. This segmentation allows the joint to appear continuous at the surface level while the base panel provides an independent sealed barrier that prevents moisture infiltration.
Solution Approach 2:
The base panel with integrated moisture barrier serves as an intermediary layer between the offset surface panels and the concrete substrate. This intermediary creates a continuous sealed joint that maintains the appearance of continuity while actually preventing moisture seepage through the joint gap.
Data Source
AI summary
A construction panel for installation on a construction surface and interlocking connection to a another construction panel comprises a moisture barrier base to inhibit migration of moisture from the construction surface. The base has a pair of opposed first connector edges comprising a first pair of releasable mating elements, and a pair of opposed second connector edges comprising a second pair of releasable mating elements. A plurality of projections extend from the underside of the base for support and to permit air circulation and drainage of water between the base and the construction surface. In one embodiment, an upper panel having selected physical characteristics is attached to the base. The positioning of the first and second pairs of mating elements on the first and second pairs of connector edges enables the interconnection of entire or partial construction panels.